Temperature-insensitive strain sensor based on in-line Fabry-Perot interferometer

被引：1

作者：

Wang, Yiping ^{[1
]}

Liu, Shen ^{[1
]}

Liao, Changrui ^{[1
]}

Li, Zhengyong ^{[1
]}

Wang, Qiao ^{[1
]}

Yin, Guolu ^{[1
]}

He, Jun ^{[1
]}

Sun, Bing ^{[1
]}

Zhao, Jing ^{[1
]}

Tang, Jian ^{[1
]}

机构：

[1] Shenzhen Univ, Key Lab Optoelect Devices & Syst, Minist Educ & Guangdong Prov, Shenzhen 518060, Peoples R China

来源：

23RD INTERNATIONAL CONFERENCE ON OPTICAL FIBRE SENSORS | 2014年 / 9157卷

关键词：

Fabry-Perot interferometer; strain sensor; PHOTONIC-CRYSTAL-FIBER; SINGLE-MODE FIBERS; CAVITY; SENSITIVITY;

D O I：

10.1117/12.2059414

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrated a high-sensitivity strain sensor based on an in-line Fabry-Perot interferometer with an air cavity whose was created by splicing together two sections of standard single mode fibers. The sensitivity of this strain sensor was enhanced to 6.02 pm/mu epsilon by improving the cavity length of the Fabry-Perot interferometer by means of repeating arc discharges for reshaping the air cavity. Moreover, such a strain sensor has a very low temperature sensitivity of 1.06 pm/degrees C, which reduces the cross-sensitivity problem between tensile strain and temperature.

引用

页数：4

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